205910375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 310542336

約数和(自身を除く): 104631961

約数列:

[1, 5, 11, 17, 23, 25, 55, 85, 115, 125, 187, 253, 275, 383, 391, 425, 575, 935, 1265, 1375, 1915, 1955, 2125, 2875, 4213, 4301, 4675, 6325, 6511, 8809, 9575, 9775, 21065, 21505, 23375, 31625, 32555, 44045, 47875, 48875, 71621, 96899, 105325, 107525, 149753, 162775, 220225, 358105, 484495, 526625, 537625, 748765, 813875, 1101125, 1647283, 1790525, 2422475, 3743825, 8236415, 8952625, 12112375, 18719125, 41182075, 205910375]

約数ペア:

[(1, 205910375), (5, 41182075), (11, 18719125), (17, 12112375), (23, 8952625), (25, 8236415), (55, 3743825), (85, 2422475), (115, 1790525), (125, 1647283), (187, 1101125), (253, 813875), (275, 748765), (383, 537625), (391, 526625), (425, 484495), (575, 358105), (935, 220225), (1265, 162775), (1375, 149753), (1915, 107525), (1955, 105325), (2125, 96899), (2875, 71621), (4213, 48875), (4301, 47875), (4675, 44045), (6325, 32555), (6511, 31625), (8809, 23375), (9575, 21505), (9775, 21065)]